The Main Reasons for the Axial Displacement

  The main reasons for the axial displacement of the idler rollers include the following:

  The influence of pipe length and bearing seat depth: Axial displacement is mainly affected by the length of the pipe and the depth of the bearing seat. For a long time, the method of trial cutting grooves on small shafts has been used to determine the installation position of the elastic retaining ring, but this method results in unstable control of the axial displacement amount.

  Welding error: The idler rollers have a welded structure, and assembly errors include welding errors. The weld position sometimes deviates towards the tube or bearing seat, and the weld quality cannot be guaranteed, resulting in lower manufacturing precision of the idler rollers, which cannot meet the needs of large-scale industrial production.

  Weld seam misalignment: Axial displacement causes weld seam misalignment, whether it shifts towards the bearing seat or the pipe, which will reduce the welding strength of the seam. This is reflected in the performance of the idler roller as a decrease in axial load-bearing capacity.